Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 5386678 | Method and apparatus for vacuum packaging The track for a pressure chamber overlaps the track for a clamper in movement while clamping a bag filled with an article, at a position beneath the latter track and with a level difference. The bag supported by the clamper is held, at its upper edge posi... | 02/07/1995 |
| 5385199 | Molten metal surface protective cover for a continuous casting apparatus having moving mold walls In a continuous casting apparatus having a pair of moving mold walls between which is defined a molten metal reservoir, the surface of molten metal is covered with an insulating member disposed within the molten metal reservoir. Projecting from opposite s... | 01/31/1995 |
| 5377817 | Bi-directional accumulation roller conveyor A bi-directional accumulation roller conveyor includes a plurality of upper load carrying rollers longitudinally coextensive with and superimposed over a plurality of lower load carrying rollers, a drive for driving the upper and lower load carrying rolle... | 01/03/1995 |
| 5368940 | Carbon composite material reinforced with carbon fiber and inorganic fiber A carbon composite material reinforced with a carbon fiber and an inorganic fiber. The composite material has a core formed of a carbon fiber-reinforced carbon composite comprising a carbon fiber reinforcement and a carbon matrix, The core is externally c... | 11/29/1994 |
| 5363951 | Over and under belt conveyor system An endless belt conveyor has vertically spaced, oppositely moving, upper and lower load carrying runs having entrance and exit ends, with the entrance end of one run being adjacent to the exit end of the other run. A first series of rollers disposed betwe... | 11/15/1994 |
| 5361890 | Conveyor trolley assembly A conveyor trolley assembly comprises a molded plastic one-piece trolley body having a yoke defined by a base portion and a pair of arms extending symmetrically therefrom to a pair of transversely spaced extremities. The yoke and pair of arms are formed a... | 11/08/1994 |
| 5348628 | Method of treating salt bath liquid The present invention relates to the method of treating the salt bath liquid. In the surface treatment of the steel material by the use of the high-temperature salt bath mainly comprising sodium hydroxide and sodium nitrate, the salt ingredients contained... | 09/20/1994 |
| 5346182 | Teeming trough A teeming trough for pouring molten metal into a mold. Cooling water jackets are formed at both sides of a horizontal body for molten metal teeming. Valves for adjusting cooling water feeds are disposed in cooling water feed paths for supplying cooling wa... | 09/13/1994 |
| 5335777 | Method and apparatus for belt conveyor load tracking A method of and apparatus for tracking data associated with a load being conveyed on a belt conveyor between a source station including a source station load sensor and a destination station including a destination station load sensor includes the steps o... | 08/09/1994 |
| 5320050 | Ash melting furnace An ash melting furnace for heating and melting ashes by a burner. The furnace body is formed with a preheating chamber and a melting chamber. Of the bottom wall of the melting chamber (12), the portion closer to the charging port is convex in transverse c... | 06/14/1994 |
| 5307916 | Sensing device A sensing device for monitoring the presence of a tool or other object on an automatic machine comprises a sensing head adapted to be mounted on the machine. The sensing head has a sensing needle mounted on the output shaft of a reversible motor actuated ... | 05/03/1994 |
| 5307690 | Temperature compensating device for torque measuring apparatus A temperature compensating device for a torque measuring apparatus of the magneto-strictive type. A torque transmission shaft has a magnetically anisotropic portion formed on the periphery of the shaft. A sensing coil is disposed around the torque transmi... | 05/03/1994 |
| 5285889 | Attachment member for conveyor chain and trolley assembly An attachment member for securing a pair of conveyor trolley brackets to a conveyor chain center link has a stem portion insertable through the center link between the trolley brackets to position recesses thereon in engagement with the center link sides ... | 02/15/1994 |
| 5277298 | Conveyor trolley bracket A forged conveyor trolley bracket has head, arm and base portions bounded by sides, and a bent elbow formed in the arm portion medially of the head and base portions. A web, disposed centrally between the sides along the base and arm portions, has outer a... | 01/11/1994 |
| 5277974 | Heat-bondable filament and nonwoven fabric made of said filament A heat-bondable fiber in the form of a core-sheath type composite fiber comprising a core component and a sheath component which covers the periphery of the core component. The sheath component is formed of copolymer polyethylene consisting of predetermin... | 01/11/1994 |
| 5248288 | Apparatus for changing work holder in transfer press An apparatus for changing workpiece holders in a transfer press. An attachment 90 having suction cups 10 is removably attached to a cross-bar 8. The attachment 90 is supported on a attachment support base 19 disposed in a lower die 2a-2e. A movable uprigh... | 09/28/1993 |
| 5246658 | Method of manufacturing working glove A method of manufacturing a open-back type working glove. A fiber-made glove is fitted on a dipping hand block, and same is dipped in a stock solution of a rubber latex composition. After the glove and hand block is removed from the stock solution, the so... | 09/21/1993 |
| 5244236 | Corrosion-preventive sleeve for drilled hole in metal pipe and tool for mounting the same The invention relates to a corrosion-preventive sleeve for preventing corrosion of a drilled hole in a metal pipe, and also to a mounting tool for mounting this corrosion-preventive sleeve in such drilled hole. The corrosion-preventive sleeve comprises an... | 09/14/1993 |
| 5239284 | Antitheft device An antitheft device of the type having a body unit to be attached to an article displayed in a shop for protecting the article against shoplifting. The device includes a transmitter for radiating an AC signal to a particular area, and the body unit which ... | 08/24/1993 |
| 5205321 | Two-way hydraulic valve with one way time delay A two-way, inline, hydraulic valve through which fluid can flow in reverse and in forward directions has a reverse flow passage including a check valve preventing forward direction fluid flow therethrough. Forward direction fluid flow is controlled by a m... | 04/27/1993 |
| 5205145 | Method of producing torque sensor shafts The invention relates to a method of producing magnetostriction type torque sensor shafts adapted to detect a change in permeability when a torque is applied. A plurality of shot peening operations are applied to the surface of a torque sensor shaft in su... | 04/27/1993 |
| 5204403 | Moisture permeable and waterproof coated fabric and method for manufacturing same A water-vapor permeable, waterproof coated fabric having a fibrous base fabric, and a porous film coated on one side of the base fabric. The porous film comprises a synthetic polymer composed mainly of a polyurethane resin and inorganic fine particles hav... | 04/20/1993 |
| 5196157 | Tundish exchange apparatus for a continuous casting equipment Two tundish cars, each detachably carrying a tundish, are supported on continuous circular rails for movement between a pouring position and a standby position spaced along the rails from a pouring position and provided with guide rails mounted above the ... | 03/23/1993 |
| 5192456 | Apparatus for treating activated sludge and method of cleaning it An activated sludge treating apparatus for use in treating wastewater, such as gray water and sewage. A plurality of filter membrane modules are vertically arranged in parallel at predetermined intervals within a treating tank. The water to be treated whi... | 03/09/1993 |
| 5186059 | Torque sensor shaft A torque sensor shaft for a non-contacting torque sensor including magnetically anisotropic portions formed on the surface of the shaft. Absolute value of angle of inclination of the anisotropic directions of the magnetically anisotropic portions is set l... | 02/16/1993 |
| 5172752 | Curved heat exchanger with low frontal area tube passes A curved heat exchanger for a vehicle has tubes generally sector shaped in cross section and arranged in an arcuate pattern to transmit heat exchanger fluid between laterally spaced tanks. One embodiment has discrete heat exchanger fluid sections respecti... | 12/22/1992 |
| 5148687 | Cooling apparatus for bulk material The invention relates to a cooling apparatus for hot bulk material, such as sintered ore. Gaps are defined between respective lower ends of side wall portions of a moveable annular air duct and respective upper ends of side wall portions of a stationary a... | 09/22/1992 |
| 5125762 | Shock energy dissipation traffic divider barrier A shock energy dissipation traffic divider barrier comprises a plurality of aligned energy dissipating members (1) slidably supported on a bearing surface (2), each of the dissipating members having a guide extending transversely therethrough. An anchorin... | 06/30/1992 |
| 5119615 | Apparatus for filling a product into a bag A plurality of clamps arranged in equally spaced relation on an endless track are intermittently advanced at a pitch equal to the distance of each two adjacent clamps. A switch reactive only to the passage of a sufficiently heavy or filled bag which has b... | 06/09/1992 |
| 5115745 | Power transmitting assembly for reciprocatably moving a shuttle cart An article transporting wheeled cart is reciprocatably moved along a pair of transversely spaced rails by a power transmitting unit detachably mounted between and below the rails and comprising a pair of trolley tracks secured to the upstanding legs of tr... | 05/26/1992 |
| 5108232 | Structure to contain natural and/or artificial embankments A structure for the containment of natural and/or artificial embankments, said structure being made up of a plurality of modular envelopes (1), each one of said envelopes (1) being made up of a tub-like fore member (2), whose fore wall (5) is at a slope w... | 04/28/1992 |
| 5105935 | Accumulation type roller conveyor drive assembly An accumulation type roller conveyor drive assembly comprising a sprocket and drive wheel unit rotatably supported on a tubular cylindrical bushing mounted in a housing formed by separate upper and lower portions. These housing portions have sides formed ... | 04/21/1992 |
| 5076751 | Reelroom newsprint roll handling apparatus and method Newsprint roll handling apparatus for a reelroom having a row of reelstands each equipped with spindles adapted to coaxially engage and rotate a cylindrical newsprint roll on a reelstand axis. The apparatus comprises storage racks installed in the reelroo... | 12/31/1991 |
| 5068141 | Polyolefin-type nonwoven fabric and method of producing the same A nonwoven fabric formed of highly spinnable heat bonded continuous filaments which is strong and soft and is superior in hand. The nonwoven fabric is formed by heat-bonding filaments of linear low density polyethylene so that the number of defects is not... | 11/26/1991 |
| 5058508 | Conveyor system with cantilever carriers A conveyor system including a conveyor track, carriers supported thereby, and carrier propelling elements associated with the conveyor track, wherein each carrier includes frame structure having an article supporting portion disposed to one side of the co... | 10/22/1991 |
| 5056299 | Apparatus for opening and placing bags on a filling hopper An apparatus for successively opening the mouths of bags which are fed one by one to a table and putting such bag over a guide hopper for charging the bag with an article to be packaged. The mouth of the bag is sucked by a pair of vacuum suction members f... | 10/15/1991 |
| 5042360 | Hydraulic regenerative starter/speed regulator for a gun gas powered gatling gun The present invention relates to a regenerative hydraulic starter/speed regulator system for providing initial rotation and acceleration of a rotatable barrel cluster of a gun gas driven Gatling gun, and for controlling the speed of the barrel cluster dur... | 08/27/1991 |
| 5036755 | Brewing improvement Coffee brewing apparatus includes a brew holder having an interior cup portion extending downwardly from a rim, and a plastic, liquid impervious liner supportable by the rim and extending within the cup portion, the liner having an upper overlay portion a... | 08/06/1991 |
| 4995126 | Cushion with heating pad A cushion using disposable heat pads. A ventilated outer bag contains in its interior, a sheet having at its upper side a recessed air passage, disposable heat pads containing powders such as of oxidized metal and water-containing material, and a cushion,... | 02/26/1991 |
| 4984523 | Self-propelled trolley and supporting track structure A self-propelled trolley and supporting track structure, the trolley forming a housing for a four wheel drive mechanism which is coupled to a driving motor attached to the housing and to a pair of axles each equipped with a pair of driving and supporting ... | 01/15/1991 |
